Pros: Does exactly what it is supposed to do.

Cons: Is not learning, but I knew that when before purchasing.

Other Thoughts: I own 3 of these remotes, 2 are spare so all the words are worn off the remote, I can just grab another. I also have used this remote for htpc builds I have made for others without complaint.

Pros: Works flawlessly with FIOS. I have three Primes installed so all five machines I have can access the tuners. Use WMC to move all my recordings to my WHS2011 server to hold all the recordings, so no matter what TV I am using I can watch any recording made by any PC on any TV.

Cons: This is not much of a con, but the first one I purchased about a year and a half ago died after a power outage. Luckily it I had already installed my second Prime, so I still had TV. I emailed SiliconDust and RMA process was easy, and the customer service great. I received a replacement in less than the "minimum" two weeks I was told would be needed for a technician to look at the item.
Like I said, not much of a con.

Other Thoughts: It is key to know what software and programs you are going to use on your machine. An anti-virus and/or firewall program could cause a lot of problems for users that "think" they are experienced.
Most, if not all, of the bad reviews appear to to be from those who don't understand software. I can't give any insight on different service providers or operating systems other than Windows 7, but every complaint about it not working properly are fairly basic issues that depend more on the user than the hardware. I build machines ALL the time, and I am constantly upgrading my own hardware, and because of this I expect to have problems. Ironically, the only problem I have is the inability to access on-demand features, but that is STB only. I have used these tuners with various hardware configs such as an Atom D525, various Core2 Duo/Quad without any problems. I have probably built 10-15 different machines and have not any issue.
All my machines are currently i7's, but the primary machines used to watch/record TV are:
i7 3770k, Gigabyte Z77, 16GB, 256GB Crucial SSD, 1TB WD Green SATA II, on-board graphics
i7 3770, Gigabyte Z77, 8GB, 256GB Samsung SSD, 1TB Seagate 7.2k SATA III, EVGA GTX 550 TI
i7 2600, Gigabyte Z77, 8GB, 256GB Crucial SSD, 1TB Seagate 7.2k SATA III, EVGA GTX 465